package com.heima.user.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.dtos.LoginDto;
import com.heima.model.user.pojos.ApUser;
import com.heima.user.mapper.ApUserMapper;
import com.heima.user.service.ApUserService;
import com.heima.utils.common.AppJwtUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.DigestUtils;

import java.sql.Wrapper;
import java.util.HashMap;

@Slf4j
@Service
@Transactional
public class ApUserServiceImpl extends ServiceImpl<ApUserMapper, ApUser> implements ApUserService {

    /**
     * app端登录功能
     * @param loginDto
     * @return
     */
    @Override
    public ResponseResult login(LoginDto loginDto) {
        // 1. 正常登录 用户名和密码
        if(StringUtils.isNotBlank(loginDto.getPassword()) && StringUtils.isNotBlank(loginDto.getPhone())){
            // 1.1 根据手机号查询用户信息
            ApUser dbUser = getOne(Wrappers.<ApUser>lambdaQuery().eq(ApUser::getPhone, loginDto.getPhone()));
            if(dbUser == null){
                return ResponseResult.errorResult(AppHttpCodeEnum.DATA_EXIST, "用户信息不存在");
            }
            // 1.2 比对密码
            String salt = dbUser.getSalt();
            String password = loginDto.getPassword();
            String de = DigestUtils.md5DigestAsHex((password + salt).getBytes());
            if(!dbUser.getPassword().equals(DigestUtils.md5DigestAsHex((password+salt).getBytes()))){
                return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
            }
            // 1.3 返回数据 jwt
            String token = AppJwtUtil.getToken(dbUser.getId().longValue());
            HashMap<String, Object> map = new HashMap<>();
            map.put("token", token);
            dbUser.setSalt("");
            dbUser.setPassword("");
            map.put("user", dbUser);
            return ResponseResult.okResult(map);
        }else{
            // 2. 游客登录
            HashMap<String, Object> map = new HashMap<>();
            map.put("token", AppJwtUtil.getToken(0L));
            return ResponseResult.okResult(map);
        }
    }
}
